Thread selector for selecting and separating leased warp threads



June 29, 1954 THREAD SELEC Patented June 29, 1954 UNITED STATES PATENTOFFICE THREAD SELECTORFOR SELECTING AND SEPARATING LEASED WARP THREADS 4Claims. 1

My invention relates to a device for selecting and separating one by onewarp threads, here called a selector, used in various machines assistingthe weaving process, e. g. in warp tying machines.

The objects of my invention are to provide a selector arranged to selectthreads from leased warps by a continuously rotating movement of theworking elements and to separate the selected threads far away from theothers by the same movement, to work simultaneously in two warps and atthe same time to attain greater speed.

The objects of the invention may be realized by the means or processdescribed in detail in the following specification.

One embodiment of the invention is illustrated by the drawing whichshows a selector for a warp tying machine, where:

Figure 1 is a front view,

Figure 2 is a plan view,

Figure 3 is a side view in perspective,

In the arrangement shown in the drawing the upper warp, as well as thelower warp, are held in leased condition by means of the lease rods I I,12 and [3, It respectively. The selector 1 is rotatably mounted on theaxis 2, which is seated in the tying machine (not shown) and is drivenby the same. The selector l constitutes a wheelformed disk, and isplaced between the lease rods in a position substantially perpendicularto a plane defined by two adjoining, crossing each other threads, and isadapted to work with its periphery on the threads in the threadcrossings, and is provided with two thread leading slits t and 4 as seenin Figure 3, leading spirall from the periphery towards the center ofthe disk. Both slits have at the periphery cleft-formed oblique openings5 and t, which alternately yary as to the direction of the obliquity andalternately coincide with both directions of the threads in the threadcrossings.

The selector l rotates with a constant slight pressure against thecrossing points of the thread groups l, 8 and 9, l respectively, so thatthe warp threads are pressed together and kept in tension, asrepresented in Figures 2 and 3. During the rotation of the selector Iboth elefts pass the thread crossings and they are arranged in such away that at the moments of passing the cleft of the slit 3 is parallelto the threads 8 and Ill, the cleft 6 of the other slit 4 is parallel tothe threads l and 9. In the moment when the cleft 5 in Figure 1 arrivesat and is passing the threads 8, the pressure of the selector againstthese threads ceases, whereby the foremost thread of the thread group 8because of its tension tends to spring back in the position it hadbefore the pressure or" the selector, getting thereby into the cleft 5.The other threads of the same group 8 are hindered from following by thethreads in the other group "i, which are held back by the borders of thecleft 5. During the continuing rotation of the selector I the saidforemost thread of the group 8 is separated from the others by means ofthe spiral slit 3 annexed to the cleft 5.

The same selecting and separating process is repeated every time a cleftpasses a thread crossing, whereb the cleft 5 selects threads from thegroups 8 and iii, and the cleft 6 threads from the groups I and 9.

The invention is not limited to the specific con struetion of theselector herein described. The axis need not be parallel to the Warpthreads as shown in the drawing and the disk need not be wheel-formed.The selector may have more than two clefts and the may be equallydisposed around the periphery of the disk.

What I claim is:

1. A thread selector for selecting and separating threads from warps, inwhich the threads are led between two lease rods in two alternatelyvarying directions, each thread crossing the ad joining ones, comprisinga rotatably mounted disk placed between the lease rods in a positionsubstantially perpendicular to a plane defined by two adjoining,crossing each other threads, and adapted to work with its periphery onthe threads in the thread crossings, said disk being provided at itsperiphery with at least two cleft-formed, alternately varying as todirection, oblique openings, said openings alternately coinciding withboth directions of theothreads in the thread crossings.

2. A thread selector as claimed in claim 1, wherein the disk is providedwith thread leadin slits, annexed to the cleft-formed openings, the saidslits being adapted to separate the selected thread from the others.

3. A thread selector as claimed in claim 1, comprising a disk axisparallel to the warp threads.

4. A thread selector as claimed in claim 1, wherein the cleft-formedopenings are equally disposed around the periphery of the disk.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 1,081,423 Bingham Dec. 16, 1913 2,413,881 Meier Jan. '7, 1947

